---------------------------------------------------------------------------------
      name:  <unnamed>
       log:  /Users/TJRyan/Dropbox/Facebook Experiments/Replication files/analysi
> s-main.log
  log type:  text
 opened on:  31 Aug 2015, 11:18:43

. do "/Users/TJRyan/Dropbox/Facebook Experiments/Replication files/analysis-main.
> do"

. clear all

. 
. use "working.dta", clear

. 
. * Table 1. Each grouping corresponds to one section of the table.
. sum impressions if gaffe==0 & ownad==1

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
 impressions |       141    9073.773    18658.37        483     111890

. di r(N) * r(mean) // # impressions
1279402

. scalar denom = r(N) * r(mean)

. sum clicks if gaffe==0 & ownad==1 

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      clicks |       141     .893617    2.123683          0         18

. di r(N) * r(mean) // # clicks 
126

. scalar num = r(N) * r(mean)

. di (num / denom) * 100 // click-through percentage
.00984835

. 
. sum impressions if gaffe==0 & ownad==0

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
 impressions |       141    9395.589    19132.43        572     123235

. di r(N) * r(mean) // # impressions
1324778

. scalar denom = r(N) * r(mean)

. sum clicks if gaffe==0 & ownad==0

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      clicks |       141    .8794326    2.603501          0         21

. di r(N) * r(mean) // # clicks. 
124

. scalar num = r(N) * r(mean)

. di (num / denom) * 100 // click-through percentage
.00936006

. 
. sum impressions if gaffe==0 & ind==1

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
 impressions |       141    29615.07    56490.47       1104     362102

. di r(N) * r(mean) // # impressions
4175725

. scalar denom = r(N) * r(mean)

. sum clicks if gaffe==0 & ind==1

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      clicks |       141    2.595745    5.189245          0         37

. di r(N) * r(mean) // # clicks 
366

. scalar num = r(N) * r(mean)

. di (num / denom) * 100 // click-through percentage
.00876495

. 
. sum impressions if gaffe==1 & ownad==1

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
 impressions |       142     10828.6     20700.3        583     119104

. di r(N) * r(mean) // # impressions
1537661

. scalar denom = r(N) * r(mean)

. sum clicks if gaffe==1 & ownad==1 

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      clicks |       142    1.809859    5.418556          0         49

. di r(N) * r(mean) // # clicks 
257

. scalar num = r(N) * r(mean)

. di (num / denom) * 100 // click-through percentage
.0167137

. 
. sum impressions if gaffe==1 & ownad==0

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
 impressions |       140    12017.77     23071.1        384     116535

. di r(N) * r(mean) // # impressions
1682488

. scalar denom = r(N) * r(mean)

. sum clicks if gaffe==1 & ownad==0

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      clicks |       140    1.171429    2.843503          0         20

. di r(N) * r(mean) // # clicks. 
164

. scalar num = r(N) * r(mean)

. di (num / denom) * 100 // click-through percentage
.00974747

. 
. sum impressions if gaffe==1 & ind==1

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
 impressions |       141    28494.17     56575.4       1285     288269

. di r(N) * r(mean) // # impressions
4017678

. scalar denom = r(N) * r(mean)

. sum clicks if gaffe==1 & ind==1

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      clicks |       141    2.886525    5.071055          0         29

. di r(N) * r(mean) // # clicks 
407

. scalar num = r(N) * r(mean)

. di (num / denom) * 100 // click-through percentage
.01013023

. 
. * Table 2
. reg ctpr gaffe [aw=impressions], robust
(sum of wgt is   1.4018e+07)

Linear regression                                      Number of obs =     846
                                                       F(  1,   844) =    5.83
                                                       Prob > F      =  0.0159
                                                       R-squared     =  0.0119
                                                       Root MSE      =  1.0752

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .2354225   .0974859     2.41   0.016     .0440792    .4267657
       _cons |   .9085673   .0558885    16.26   0.000     .7988705    1.018264
------------------------------------------------------------------------------

. reg ctpr gaffe female geog relat age2 [aw=impressions], robust
(sum of wgt is   1.4018e+07)

Linear regression                                      Number of obs =     846
                                                       F(  5,   840) =   14.62
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.1734
                                                       Root MSE      =   .9857

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .2820465   .0842477     3.35   0.001     .1166858    .4474073
      female |  -.1445413   .0789218    -1.83   0.067    -.2994484    .0103658
        geog |   .0162318   .0693452     0.23   0.815    -.1198784     .152342
       relat |  -.1080577   .0808238    -1.34   0.182     -.266698    .0505826
        age2 |    1.38401   .1769323     7.82   0.000     1.036728    1.731291
       _cons |   .6586922   .0908424     7.25   0.000     .4803875     .836997
------------------------------------------------------------------------------

. reg ctpr gaffe female geog relat age2 [aw=impressions] if lib==1, robust
(sum of wgt is   3.1652e+06)

Linear regression                                      Number of obs =     282
                                                       F(  5,   276) =    9.67
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.2610
                                                       Root MSE      =  1.3099

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .4911952    .229884     2.14   0.034     .0386464     .943744
      female |  -.2743841    .232474    -1.18   0.239    -.7320315    .1832634
        geog |  -.2602565   .1586162    -1.64   0.102    -.5725079    .0519948
       relat |  -.1583603   .1980077    -0.80   0.425    -.5481576     .231437
        age2 |    2.21338   .3501612     6.32   0.000     1.524054    2.902706
       _cons |   .7474185   .2118971     3.53   0.000     .3302787    1.164558
------------------------------------------------------------------------------

. reg ctpr gaffe female geog relat age2 [aw=impressions] if cons==1, robust
(sum of wgt is   2.6591e+06)

Linear regression                                      Number of obs =     282
                                                       F(  5,   276) =    4.81
                                                       Prob > F      =  0.0003
                                                       R-squared     =  0.0792
                                                       Root MSE      =  1.1553

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .3004494   .1347837     2.23   0.027     .0351148     .565784
      female |  -.2258056   .1233366    -1.83   0.068    -.4686055    .0169944
        geog |  -.0475998   .1222694    -0.39   0.697    -.2882989    .1930993
       relat |  -.0752186   .1235299    -0.61   0.543    -.3183992    .1679619
        age2 |   1.027471   .2803011     3.67   0.000      .475671    1.579271
       _cons |   .6125254   .1608704     3.81   0.000     .2958364    .9292143
------------------------------------------------------------------------------

. reg ctpr gaffe female geog relat age2 [aw=impressions] if ind==1, robust
(sum of wgt is   8.1934e+06)

Linear regression                                      Number of obs =     282
                                                       F(  5,   276) =   15.13
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.1549
                                                       Root MSE      =  .70691

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .1751536   .0681173     2.57   0.011      .041058    .3092492
      female |   -.127587   .0802624    -1.59   0.113    -.2855914    .0304173
        geog |   .0799362   .0710163     1.13   0.261    -.0598663    .2197387
       relat |   .0199984   .0638415     0.31   0.754    -.1056798    .1456766
        age2 |   .9634115   .1293635     7.45   0.000      .708747    1.218076
       _cons |   .6548643   .0853131     7.68   0.000     .4869174    .8228113
------------------------------------------------------------------------------

. 
. * Table 3, left side
. preserve

. keep if gaffe==0
(423 observations deleted)

. reg ctpr ownad [aw=impressions], robust
(sum of wgt is   2.6042e+06)

Linear regression                                      Number of obs =     282
                                                       F(  1,   280) =    0.06
                                                       Prob > F      =  0.8091
                                                       R-squared     =  0.0004
                                                       Root MSE      =   1.158

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .0488292   .2018946     0.24   0.809    -.3485947    .4462531
       _cons |   .9360059   .1421002     6.59   0.000     .6562856    1.215726
------------------------------------------------------------------------------

. reg ctpr ownad female geog relat age2 [aw=impressions], robust
(sum of wgt is   2.6042e+06)

Linear regression                                      Number of obs =     282
                                                       F(  5,   276) =    6.82
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.1307
                                                       Root MSE      =  1.0877

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |    .136545   .1458991     0.94   0.350    -.1506715    .4237615
      female |  -.1008931   .1413629    -0.71   0.476    -.3791796    .1773934
        geog |   -.412873   .1375926    -3.00   0.003    -.6837373   -.1420087
       relat |  -.2120953   .1491857    -1.42   0.156    -.5057816    .0815911
        age2 |   1.202216   .2665348     4.51   0.000     .6775163    1.726915
       _cons |   .9134873   .1590198     5.74   0.000     .6004415    1.226533
------------------------------------------------------------------------------

. reg ctpr ownad female geog relat age2 [aw=impressions] if lib==1, robust
(sum of wgt is   1.4205e+06)

Linear regression                                      Number of obs =     141
                                                       F(  5,   135) =    6.71
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.1772
                                                       Root MSE      =  1.1424

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .2199913   .2107946     1.04   0.299    -.1968955    .6368782
      female |  -.0436121   .2300739    -0.19   0.850    -.4986275    .4114032
        geog |  -.6392895   .1855885    -3.44   0.001    -1.006327   -.2722524
       relat |  -.2614052   .2130748    -1.23   0.222    -.6828016    .1599913
        age2 |   1.490376   .3558519     4.19   0.000     .7866102    2.194141
       _cons |   1.040436   .2193721     4.74   0.000     .6065857    1.474287
------------------------------------------------------------------------------

. reg ctpr ownad female geog relat age2 [aw=impressions] if cons==1, robust
(sum of wgt is   1.1837e+06)

Linear regression                                      Number of obs =     141
                                                       F(  5,   135) =    2.74
                                                       Prob > F      =  0.0217
                                                       R-squared     =  0.0833
                                                       Root MSE      =  .95874

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .1942621   .1450042     1.34   0.183    -.0925115    .4810357
      female |  -.3671642   .1539418    -2.39   0.018    -.6716137   -.0627148
        geog |  -.1246047   .1471478    -0.85   0.399    -.4156177    .1664084
       relat |    .257477   .1743967     1.48   0.142    -.0874261      .60238
        age2 |   .3236125   .3135948     1.03   0.304    -.2965816    .9438066
       _cons |   .6762778   .1734134     3.90   0.000     .3333195    1.019236
------------------------------------------------------------------------------

. restore

. 
. * Table 3, right side
. preserve

. keep if gaffe==1
(423 observations deleted)

. reg ctpr ownad [aw=impressions], robust
(sum of wgt is   3.2201e+06)

Linear regression                                      Number of obs =     282
                                                       F(  1,   280) =    5.33
                                                       Prob > F      =  0.0217
                                                       R-squared     =  0.0498
                                                       Root MSE      =  1.5251

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .6966228     .30185     2.31   0.022     .1024393    1.290806
       _cons |   .9747469   .1075223     9.07   0.000     .7630923    1.186402
------------------------------------------------------------------------------

. reg ctpr ownad female geog relat age2 [aw=impressions], robust
(sum of wgt is   3.2201e+06)

Linear regression                                      Number of obs =     282
                                                       F(  5,   276) =   10.62
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.3059
                                                       Root MSE      =  1.3129

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .6360988   .1840675     3.46   0.001     .2737442    .9984534
      female |  -.3208294   .1687718    -1.90   0.058    -.6530729    .0114141
        geog |   .1037328   .1493746     0.69   0.488    -.1903255    .3977911
       relat |  -.2894081   .1811848    -1.60   0.111    -.6460879    .0672717
        age2 |   2.339565   .3314982     7.06   0.000     1.686979    2.992151
       _cons |   .6229091   .1617181     3.85   0.000     .3045515    .9412668
------------------------------------------------------------------------------

. reg ctpr ownad female geog relat age2 [aw=impressions] if lib==1, robust
(sum of wgt is   1.7447e+06)

Linear regression                                      Number of obs =     141
                                                       F(  5,   135) =   13.02
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.4012
                                                       Root MSE      =  1.3261

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .7740819   .2953138     2.62   0.010     .1900422    1.358122
      female |  -.5601373   .2738983    -2.05   0.043    -1.101824   -.0184507
        geog |    .052485   .2483126     0.21   0.833    -.4386009    .5435709
       relat |  -.2862447   .2601876    -1.10   0.273    -.8008158    .2283264
        age2 |   2.781031   .3975108     7.00   0.000     1.994877    3.567185
       _cons |   .7177122   .2077224     3.46   0.001     .3069012    1.128523
------------------------------------------------------------------------------

. reg ctpr ownad female geog relat age2 [aw=impressions] if cons==1, robust
(sum of wgt is   1.4754e+06)

Linear regression                                      Number of obs =     141
                                                       F(  5,   135) =    4.53
                                                       Prob > F      =  0.0008
                                                       R-squared     =  0.1294
                                                       Root MSE      =   1.262

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .5354401   .1785776     3.00   0.003     .1822685    .8886117
      female |  -.1726092   .1759058    -0.98   0.328    -.5204968    .1752783
        geog |   .1259921   .1656382     0.76   0.448    -.2015894    .4535735
       relat |  -.1585078    .166441    -0.95   0.343     -.487677    .1706614
        age2 |   1.329051   .4568029     2.91   0.004      .425635    2.232466
       _cons |   .5503598   .1932537     2.85   0.005     .1681634    .9325562
------------------------------------------------------------------------------

. restore

. 
. * Figure 2
. reg ctpr ownad##gaffe female geog relat age2 [aw=impressions], robust
(sum of wgt is   5.8243e+06)

Linear regression                                      Number of obs =     564
                                                       F(  7,   556) =    9.91
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.2319
                                                       Root MSE      =  1.2387

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
     1.ownad |   .2012568   .1625289     1.24   0.216    -.1179889    .5205026
     1.gaffe |   .2357449   .1485745     1.59   0.113    -.0560911    .5275808
             |
 ownad#gaffe |
        1 1  |   .4345753   .2544967     1.71   0.088    -.0653171    .9344678
             |
      female |  -.2087706     .13123    -1.59   0.112    -.4665379    .0489966
        geog |  -.1040241     .11056    -0.94   0.347    -.3211904    .1131421
       relat |  -.2604032   .1335555    -1.95   0.052    -.5227383    .0019318
        age2 |   1.802849   .2356863     7.65   0.000     1.339904    2.265793
       _cons |   .5792288   .1677705     3.45   0.001     .2496872    .9087704
------------------------------------------------------------------------------

. margins, at(ownad=(0 1) gaffe=(0 1)) atmeans

Adjusted predictions                              Number of obs   =        564
Model VCE    : Robust

Expression   : Linear prediction, predict()

1._at        : ownad           =           0
               gaffe           =           0
               female          =    .5731457 (mean)
               geog            =    .5935324 (mean)
               relat           =    .5031577 (mean)
               age2            =    .3011043 (mean)

2._at        : ownad           =           0
               gaffe           =           1
               female          =    .5731457 (mean)
               geog            =    .5935324 (mean)
               relat           =    .5031577 (mean)
               age2            =    .3011043 (mean)

3._at        : ownad           =           1
               gaffe           =           0
               female          =    .5731457 (mean)
               geog            =    .5935324 (mean)
               relat           =    .5031577 (mean)
               age2            =    .3011043 (mean)

4._at        : ownad           =           1
               gaffe           =           1
               female          =    .5731457 (mean)
               geog            =    .5935324 (mean)
               relat           =    .5031577 (mean)
               age2            =    .3011043 (mean)

------------------------------------------------------------------------------
             |            Delta-method
             |     Margin   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         _at |
          1  |   .8096527   .1278313     6.33   0.000     .5585614    1.060744
          2  |   1.045398   .0773587    13.51   0.000     .8934464    1.197349
          3  |    1.01091   .0998098    10.13   0.000     .8148592     1.20696
          4  |    1.68123   .1879108     8.95   0.000     1.312128    2.050332
------------------------------------------------------------------------------

. collapse (mean) ctpr (semean) sectpr=ctpr [aw=impressions], by(ownad gaffe)

. 
. * These numbers come from the margins command above. Regression-adjusted means 
> and standard errors.
. replace ctpr = .8096 in 1
(1 real change made)

. replace sectpr = .1278 in 1
(1 real change made)

. replace ctpr = 1.045 in 2
(1 real change made)

. replace sectpr = .0773 in 2
(1 real change made)

. replace ctpr = 1.010 in 3
(1 real change made)

. replace sectpr = .0998 in 3
(1 real change made)

. replace ctpr = 1.681 in 4
(1 real change made)

. replace sectpr = .1879 in 4
(1 real change made)

. 
. * Standard error whiskers
. gen sehigh = ctpr+sectpr

. gen selow = ctpr-sectpr

. 
. gen space = . // space = where the bar will be on the x-axis
(6 missing values generated)

. replace space = 0 if gaffe==0 & ownad==0
(1 real change made)

. replace space = 1 if gaffe==1 & ownad==0
(1 real change made)

. replace space = 2.5 if gaffe==0 & ownad==1
(1 real change made)

. replace space = 3.5 if gaffe==1 & ownad==1
(1 real change made)

. 
. * Make Figure
. set scheme sj

. twoway (bar ctpr space if gaffe==0) ///
>         (bar ctpr space if gaffe==1) ///
>         (rcap sehigh selow space, lcolor(black)), ///
>         legen(row(1) order(1 "Policy" 2 "Gaffe")) ///
>         xlabel( .5 "Inconsistent" 3 "Consistent") ///
>         xtitle("") ///
>         ytitle("Click-through percentage * 100") ///
>         ysc(r(0 1.8)) ///
>         ylab(0(.4)1.8)

.         
. * "Overall, our ads were displayed..."
. use "working.dta", clear

. sum impressions

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
 impressions |       846    16569.42    37622.69        384     362102

. di 16569.42*846 // Total impressions
14017729

. sum clicks

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      clicks |       846    1.706856     4.17846          0         49

. di 1.7068 * 846 // Total clicks
1443.9528

. 
. * "As a result, the number of ad displays..."
. sum impressions, detail // examine max and min

                      (sum) impressions
-------------------------------------------------------------
      Percentiles      Smallest
 1%          698            384
 5%         1048            483
10%         1478            535       Obs                 846
25%         2477            572       Sum of Wgt.         846

50%         4592                      Mean           16569.42
                        Largest       Std. Dev.      37622.69
75%        12361         277146
90%        38939         287974       Variance       1.42e+09
95%        71171         288269       Skewness        4.97228
99%       234223         362102       Kurtosis        32.4374

. 
. * Paragraph about cost
. * Assumption: $0.07 for 1,000 impressions (Approximate actual cost in our study
> )
. * $1,000 Campaign buys (1000/.07) * 1000 = 14,285,714 impressions. Rounded to 1
> 4M
. * Clicks in Policy campaign: 14000000 * .00009085 = 1,272
. * Clicks in Gaffe campaign: 14000000 * (.00009085 + .0000235) = 1,601
. * Cost per click in Policy campaign: 1000 / 1272 = $0.78
. * Cost per click in Gaffe campaign: 1000 / 1601 = $0.62
. 
. * "... the estimated effect of the gaffe manipulation among 
. * individuals who saw an uncongenial ad is positive (but not significant: p<.22
> )"
. reg ctpr gaffe female geog relat age2 if ownad==0 [aw=impressions], robust
(sum of wgt is   3.0073e+06)

Linear regression                                      Number of obs =     281
                                                       F(  5,   275) =    5.06
                                                       Prob > F      =  0.0002
                                                       R-squared     =  0.1218
                                                       Root MSE      =  1.0467

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .1645505   .1328171     1.24   0.216     -.096917    .4260179
      female |  -.0388556   .1393778    -0.28   0.781    -.3132387    .2355275
        geog |  -.0814491   .1263649    -0.64   0.520    -.3302146    .1673163
       relat |  -.2164346   .1175831    -1.84   0.067    -.4479119    .0150427
        age2 |   1.076845   .2581976     4.17   0.000     .5685498     1.58514
       _cons |   .7141045   .1465273     4.87   0.000     .4256469    1.002562
------------------------------------------------------------------------------

. 
. * Footnote 15
. use "working.dta", clear

. tab impressions // look at 10th and 90th percentile

      (sum) |
impressions |      Freq.     Percent        Cum.
------------+-----------------------------------
        384 |          1        0.12        0.12
        483 |          1        0.12        0.24
        535 |          1        0.12        0.35
        572 |          1        0.12        0.47
        583 |          1        0.12        0.59
        643 |          1        0.12        0.71
        693 |          1        0.12        0.83
        695 |          1        0.12        0.95
        698 |          1        0.12        1.06
        726 |          1        0.12        1.18
        744 |          1        0.12        1.30
        759 |          1        0.12        1.42
        769 |          1        0.12        1.54
        771 |          1        0.12        1.65
        791 |          1        0.12        1.77
        811 |          1        0.12        1.89
        815 |          1        0.12        2.01
        838 |          1        0.12        2.13
        841 |          1        0.12        2.25
        878 |          1        0.12        2.36
        879 |          1        0.12        2.48
        890 |          1        0.12        2.60
        909 |          1        0.12        2.72
        924 |          1        0.12        2.84
        928 |          1        0.12        2.96
        937 |          1        0.12        3.07
        951 |          1        0.12        3.19
        960 |          1        0.12        3.31
        967 |          1        0.12        3.43
        973 |          1        0.12        3.55
        984 |          1        0.12        3.66
        985 |          1        0.12        3.78
        988 |          1        0.12        3.90
        989 |          1        0.12        4.02
        994 |          1        0.12        4.14
        995 |          1        0.12        4.26
       1018 |          1        0.12        4.37
       1026 |          1        0.12        4.49
       1031 |          2        0.24        4.73
       1034 |          1        0.12        4.85
       1042 |          1        0.12        4.96
       1048 |          1        0.12        5.08
       1063 |          1        0.12        5.20
       1095 |          1        0.12        5.32
       1102 |          1        0.12        5.44
       1104 |          1        0.12        5.56
       1140 |          1        0.12        5.67
       1169 |          1        0.12        5.79
       1188 |          1        0.12        5.91
       1195 |          1        0.12        6.03
       1197 |          1        0.12        6.15
       1202 |          1        0.12        6.26
       1217 |          1        0.12        6.38
       1218 |          1        0.12        6.50
       1222 |          1        0.12        6.62
       1223 |          1        0.12        6.74
       1226 |          1        0.12        6.86
       1256 |          1        0.12        6.97
       1258 |          1        0.12        7.09
       1260 |          1        0.12        7.21
       1263 |          1        0.12        7.33
       1274 |          1        0.12        7.45
       1278 |          1        0.12        7.57
       1285 |          2        0.24        7.80
       1290 |          1        0.12        7.92
       1310 |          1        0.12        8.04
       1318 |          1        0.12        8.16
       1335 |          1        0.12        8.27
       1341 |          1        0.12        8.39
       1346 |          1        0.12        8.51
       1355 |          1        0.12        8.63
       1372 |          1        0.12        8.75
       1385 |          1        0.12        8.87
       1396 |          1        0.12        8.98
       1414 |          1        0.12        9.10
       1424 |          1        0.12        9.22
       1444 |          1        0.12        9.34
       1450 |          1        0.12        9.46
       1451 |          1        0.12        9.57
       1452 |          1        0.12        9.69
       1462 |          1        0.12        9.81
       1473 |          1        0.12        9.93
       1478 |          1        0.12       10.05
       1481 |          1        0.12       10.17
       1486 |          1        0.12       10.28
       1491 |          1        0.12       10.40
       1494 |          1        0.12       10.52
       1499 |          1        0.12       10.64
       1502 |          1        0.12       10.76
       1508 |          1        0.12       10.87
       1509 |          1        0.12       10.99
       1518 |          1        0.12       11.11
       1521 |          1        0.12       11.23
       1526 |          1        0.12       11.35
       1551 |          1        0.12       11.47
       1565 |          2        0.24       11.70
       1568 |          1        0.12       11.82
       1570 |          1        0.12       11.94
       1576 |          1        0.12       12.06
       1583 |          1        0.12       12.17
       1584 |          1        0.12       12.29
       1587 |          1        0.12       12.41
       1589 |          1        0.12       12.53
       1594 |          1        0.12       12.65
       1602 |          1        0.12       12.77
       1611 |          1        0.12       12.88
       1618 |          2        0.24       13.12
       1620 |          1        0.12       13.24
       1629 |          1        0.12       13.36
       1640 |          1        0.12       13.48
       1648 |          1        0.12       13.59
       1652 |          1        0.12       13.71
       1655 |          1        0.12       13.83
       1681 |          1        0.12       13.95
       1687 |          1        0.12       14.07
       1688 |          1        0.12       14.18
       1695 |          1        0.12       14.30
       1709 |          1        0.12       14.42
       1710 |          1        0.12       14.54
       1711 |          1        0.12       14.66
       1712 |          1        0.12       14.78
       1715 |          1        0.12       14.89
       1718 |          1        0.12       15.01
       1727 |          1        0.12       15.13
       1771 |          1        0.12       15.25
       1784 |          1        0.12       15.37
       1802 |          1        0.12       15.48
       1803 |          1        0.12       15.60
       1817 |          1        0.12       15.72
       1830 |          1        0.12       15.84
       1843 |          1        0.12       15.96
       1849 |          1        0.12       16.08
       1859 |          1        0.12       16.19
       1863 |          1        0.12       16.31
       1874 |          1        0.12       16.43
       1879 |          1        0.12       16.55
       1885 |          1        0.12       16.67
       1894 |          1        0.12       16.78
       1896 |          1        0.12       16.90
       1903 |          1        0.12       17.02
       1912 |          1        0.12       17.14
       1927 |          1        0.12       17.26
       1930 |          1        0.12       17.38
       1936 |          1        0.12       17.49
       1937 |          1        0.12       17.61
       1938 |          1        0.12       17.73
       1943 |          1        0.12       17.85
       1944 |          1        0.12       17.97
       1965 |          1        0.12       18.09
       1976 |          2        0.24       18.32
       1983 |          1        0.12       18.44
       1987 |          1        0.12       18.56
       1992 |          1        0.12       18.68
       2005 |          1        0.12       18.79
       2007 |          1        0.12       18.91
       2013 |          1        0.12       19.03
       2015 |          1        0.12       19.15
       2019 |          1        0.12       19.27
       2023 |          1        0.12       19.39
       2024 |          1        0.12       19.50
       2027 |          1        0.12       19.62
       2035 |          1        0.12       19.74
       2038 |          1        0.12       19.86
       2073 |          1        0.12       19.98
       2076 |          1        0.12       20.09
       2087 |          1        0.12       20.21
       2101 |          1        0.12       20.33
       2108 |          1        0.12       20.45
       2117 |          1        0.12       20.57
       2124 |          1        0.12       20.69
       2125 |          1        0.12       20.80
       2140 |          1        0.12       20.92
       2141 |          1        0.12       21.04
       2158 |          1        0.12       21.16
       2171 |          1        0.12       21.28
       2178 |          1        0.12       21.39
       2180 |          1        0.12       21.51
       2193 |          2        0.24       21.75
       2197 |          1        0.12       21.87
       2219 |          2        0.24       22.10
       2225 |          1        0.12       22.22
       2233 |          2        0.24       22.46
       2238 |          1        0.12       22.58
       2241 |          1        0.12       22.70
       2252 |          1        0.12       22.81
       2265 |          1        0.12       22.93
       2267 |          1        0.12       23.05
       2268 |          1        0.12       23.17
       2277 |          1        0.12       23.29
       2283 |          1        0.12       23.40
       2318 |          1        0.12       23.52
       2319 |          1        0.12       23.64
       2361 |          1        0.12       23.76
       2378 |          1        0.12       23.88
       2381 |          1        0.12       24.00
       2394 |          1        0.12       24.11
       2417 |          1        0.12       24.23
       2432 |          1        0.12       24.35
       2437 |          1        0.12       24.47
       2440 |          1        0.12       24.59
       2457 |          1        0.12       24.70
       2463 |          1        0.12       24.82
       2469 |          1        0.12       24.94
       2477 |          1        0.12       25.06
       2480 |          1        0.12       25.18
       2485 |          1        0.12       25.30
       2486 |          2        0.24       25.53
       2487 |          1        0.12       25.65
       2520 |          1        0.12       25.77
       2521 |          1        0.12       25.89
       2522 |          1        0.12       26.00
       2524 |          1        0.12       26.12
       2532 |          1        0.12       26.24
       2535 |          1        0.12       26.36
       2545 |          1        0.12       26.48
       2554 |          1        0.12       26.60
       2574 |          1        0.12       26.71
       2578 |          1        0.12       26.83
       2596 |          1        0.12       26.95
       2602 |          1        0.12       27.07
       2625 |          1        0.12       27.19
       2673 |          1        0.12       27.30
       2677 |          1        0.12       27.42
       2690 |          1        0.12       27.54
       2697 |          1        0.12       27.66
       2700 |          1        0.12       27.78
       2701 |          1        0.12       27.90
       2717 |          1        0.12       28.01
       2723 |          1        0.12       28.13
       2724 |          1        0.12       28.25
       2728 |          1        0.12       28.37
       2730 |          1        0.12       28.49
       2738 |          1        0.12       28.61
       2752 |          2        0.24       28.84
       2762 |          1        0.12       28.96
       2766 |          1        0.12       29.08
       2803 |          1        0.12       29.20
       2813 |          1        0.12       29.31
       2815 |          1        0.12       29.43
       2816 |          1        0.12       29.55
       2825 |          1        0.12       29.67
       2835 |          1        0.12       29.79
       2848 |          1        0.12       29.91
       2857 |          1        0.12       30.02
       2860 |          1        0.12       30.14
       2862 |          1        0.12       30.26
       2871 |          1        0.12       30.38
       2873 |          1        0.12       30.50
       2890 |          1        0.12       30.61
       2893 |          1        0.12       30.73
       2894 |          1        0.12       30.85
       2897 |          1        0.12       30.97
       2901 |          1        0.12       31.09
       2910 |          1        0.12       31.21
       2914 |          1        0.12       31.32
       2932 |          1        0.12       31.44
       2934 |          2        0.24       31.68
       2947 |          1        0.12       31.80
       2959 |          1        0.12       31.91
       2960 |          1        0.12       32.03
       2972 |          1        0.12       32.15
       2979 |          1        0.12       32.27
       2980 |          1        0.12       32.39
       2986 |          1        0.12       32.51
       3007 |          1        0.12       32.62
       3013 |          1        0.12       32.74
       3014 |          1        0.12       32.86
       3024 |          1        0.12       32.98
       3047 |          1        0.12       33.10
       3052 |          1        0.12       33.22
       3054 |          1        0.12       33.33
       3066 |          1        0.12       33.45
       3068 |          1        0.12       33.57
       3080 |          1        0.12       33.69
       3084 |          1        0.12       33.81
       3111 |          1        0.12       33.92
       3119 |          1        0.12       34.04
       3125 |          1        0.12       34.16
       3127 |          1        0.12       34.28
       3131 |          1        0.12       34.40
       3173 |          1        0.12       34.52
       3176 |          1        0.12       34.63
       3194 |          1        0.12       34.75
       3202 |          2        0.24       34.99
       3219 |          1        0.12       35.11
       3246 |          1        0.12       35.22
       3249 |          1        0.12       35.34
       3251 |          1        0.12       35.46
       3255 |          1        0.12       35.58
       3261 |          1        0.12       35.70
       3275 |          1        0.12       35.82
       3292 |          1        0.12       35.93
       3297 |          1        0.12       36.05
       3331 |          1        0.12       36.17
       3337 |          1        0.12       36.29
       3352 |          1        0.12       36.41
       3355 |          1        0.12       36.52
       3379 |          1        0.12       36.64
       3382 |          1        0.12       36.76
       3389 |          1        0.12       36.88
       3394 |          1        0.12       37.00
       3454 |          1        0.12       37.12
       3459 |          1        0.12       37.23
       3462 |          1        0.12       37.35
       3463 |          1        0.12       37.47
       3482 |          1        0.12       37.59
       3484 |          1        0.12       37.71
       3485 |          1        0.12       37.83
       3501 |          1        0.12       37.94
       3544 |          1        0.12       38.06
       3547 |          1        0.12       38.18
       3561 |          1        0.12       38.30
       3565 |          1        0.12       38.42
       3595 |          2        0.24       38.65
       3607 |          1        0.12       38.77
       3632 |          1        0.12       38.89
       3641 |          1        0.12       39.01
       3649 |          1        0.12       39.13
       3681 |          1        0.12       39.24
       3692 |          1        0.12       39.36
       3693 |          1        0.12       39.48
       3695 |          1        0.12       39.60
       3696 |          1        0.12       39.72
       3703 |          1        0.12       39.83
       3705 |          1        0.12       39.95
       3719 |          1        0.12       40.07
       3723 |          1        0.12       40.19
       3725 |          1        0.12       40.31
       3730 |          1        0.12       40.43
       3753 |          1        0.12       40.54
       3754 |          1        0.12       40.66
       3780 |          1        0.12       40.78
       3781 |          1        0.12       40.90
       3791 |          1        0.12       41.02
       3812 |          1        0.12       41.13
       3818 |          1        0.12       41.25
       3822 |          2        0.24       41.49
       3826 |          1        0.12       41.61
       3831 |          1        0.12       41.73
       3856 |          1        0.12       41.84
       3857 |          1        0.12       41.96
       3865 |          1        0.12       42.08
       3876 |          1        0.12       42.20
       3881 |          1        0.12       42.32
       3892 |          1        0.12       42.43
       3895 |          1        0.12       42.55
       3914 |          1        0.12       42.67
       3918 |          1        0.12       42.79
       3922 |          1        0.12       42.91
       3923 |          1        0.12       43.03
       3928 |          1        0.12       43.14
       3934 |          1        0.12       43.26
       3940 |          2        0.24       43.50
       3962 |          1        0.12       43.62
       3964 |          1        0.12       43.74
       3979 |          1        0.12       43.85
       4017 |          1        0.12       43.97
       4020 |          1        0.12       44.09
       4024 |          1        0.12       44.21
       4039 |          1        0.12       44.33
       4040 |          1        0.12       44.44
       4044 |          2        0.24       44.68
       4068 |          1        0.12       44.80
       4086 |          1        0.12       44.92
       4089 |          1        0.12       45.04
       4109 |          1        0.12       45.15
       4116 |          1        0.12       45.27
       4125 |          1        0.12       45.39
       4157 |          1        0.12       45.51
       4160 |          1        0.12       45.63
       4162 |          1        0.12       45.74
       4206 |          1        0.12       45.86
       4231 |          1        0.12       45.98
       4235 |          1        0.12       46.10
       4250 |          1        0.12       46.22
       4262 |          1        0.12       46.34
       4271 |          1        0.12       46.45
       4272 |          1        0.12       46.57
       4278 |          1        0.12       46.69
       4282 |          1        0.12       46.81
       4329 |          1        0.12       46.93
       4343 |          1        0.12       47.04
       4346 |          1        0.12       47.16
       4348 |          1        0.12       47.28
       4355 |          1        0.12       47.40
       4363 |          1        0.12       47.52
       4374 |          1        0.12       47.64
       4381 |          1        0.12       47.75
       4393 |          1        0.12       47.87
       4409 |          1        0.12       47.99
       4411 |          1        0.12       48.11
       4430 |          1        0.12       48.23
       4432 |          1        0.12       48.35
       4434 |          1        0.12       48.46
       4454 |          1        0.12       48.58
       4475 |          1        0.12       48.70
       4479 |          1        0.12       48.82
       4488 |          1        0.12       48.94
       4498 |          1        0.12       49.05
       4506 |          1        0.12       49.17
       4527 |          1        0.12       49.29
       4534 |          1        0.12       49.41
       4543 |          1        0.12       49.53
       4566 |          1        0.12       49.65
       4574 |          1        0.12       49.76
       4583 |          1        0.12       49.88
       4589 |          1        0.12       50.00
       4595 |          1        0.12       50.12
       4601 |          1        0.12       50.24
       4631 |          1        0.12       50.35
       4659 |          1        0.12       50.47
       4661 |          1        0.12       50.59
       4663 |          1        0.12       50.71
       4717 |          1        0.12       50.83
       4740 |          1        0.12       50.95
       4759 |          1        0.12       51.06
       4760 |          2        0.24       51.30
       4778 |          1        0.12       51.42
       4829 |          1        0.12       51.54
       4836 |          1        0.12       51.65
       4852 |          1        0.12       51.77
       4863 |          1        0.12       51.89
       4868 |          1        0.12       52.01
       4884 |          1        0.12       52.13
       4901 |          2        0.24       52.36
       4917 |          1        0.12       52.48
       4928 |          1        0.12       52.60
       4930 |          1        0.12       52.72
       4936 |          1        0.12       52.84
       4937 |          1        0.12       52.96
       4940 |          1        0.12       53.07
       4943 |          1        0.12       53.19
       4947 |          1        0.12       53.31
       4959 |          1        0.12       53.43
       4966 |          1        0.12       53.55
       4974 |          1        0.12       53.66
       4983 |          1        0.12       53.78
       4985 |          1        0.12       53.90
       5005 |          1        0.12       54.02
       5008 |          1        0.12       54.14
       5017 |          1        0.12       54.26
       5024 |          1        0.12       54.37
       5037 |          1        0.12       54.49
       5039 |          1        0.12       54.61
       5047 |          1        0.12       54.73
       5056 |          1        0.12       54.85
       5078 |          1        0.12       54.96
       5091 |          1        0.12       55.08
       5108 |          1        0.12       55.20
       5114 |          1        0.12       55.32
       5129 |          1        0.12       55.44
       5132 |          1        0.12       55.56
       5134 |          2        0.24       55.79
       5142 |          1        0.12       55.91
       5194 |          1        0.12       56.03
       5229 |          1        0.12       56.15
       5301 |          1        0.12       56.26
       5316 |          1        0.12       56.38
       5325 |          1        0.12       56.50
       5326 |          1        0.12       56.62
       5342 |          1        0.12       56.74
       5375 |          1        0.12       56.86
       5401 |          1        0.12       56.97
       5461 |          1        0.12       57.09
       5468 |          1        0.12       57.21
       5522 |          1        0.12       57.33
       5530 |          1        0.12       57.45
       5538 |          1        0.12       57.57
       5559 |          1        0.12       57.68
       5580 |          1        0.12       57.80
       5597 |          1        0.12       57.92
       5606 |          1        0.12       58.04
       5610 |          1        0.12       58.16
       5662 |          1        0.12       58.27
       5694 |          1        0.12       58.39
       5703 |          1        0.12       58.51
       5731 |          1        0.12       58.63
       5777 |          1        0.12       58.75
       5778 |          1        0.12       58.87
       5783 |          1        0.12       58.98
       5808 |          1        0.12       59.10
       5831 |          1        0.12       59.22
       5836 |          1        0.12       59.34
       5889 |          1        0.12       59.46
       5890 |          1        0.12       59.57
       5908 |          1        0.12       59.69
       5954 |          1        0.12       59.81
       5961 |          1        0.12       59.93
       6021 |          1        0.12       60.05
       6057 |          1        0.12       60.17
       6072 |          1        0.12       60.28
       6098 |          1        0.12       60.40
       6099 |          1        0.12       60.52
       6101 |          1        0.12       60.64
       6105 |          1        0.12       60.76
       6128 |          1        0.12       60.87
       6222 |          1        0.12       60.99
       6228 |          1        0.12       61.11
       6231 |          1        0.12       61.23
       6241 |          1        0.12       61.35
       6259 |          1        0.12       61.47
       6268 |          1        0.12       61.58
       6270 |          1        0.12       61.70
       6279 |          1        0.12       61.82
       6284 |          1        0.12       61.94
       6354 |          1        0.12       62.06
       6368 |          1        0.12       62.17
       6388 |          1        0.12       62.29
       6484 |          1        0.12       62.41
       6487 |          1        0.12       62.53
       6489 |          1        0.12       62.65
       6562 |          1        0.12       62.77
       6589 |          1        0.12       62.88
       6663 |          1        0.12       63.00
       6684 |          1        0.12       63.12
       6787 |          1        0.12       63.24
       6944 |          1        0.12       63.36
       7005 |          1        0.12       63.48
       7094 |          1        0.12       63.59
       7140 |          1        0.12       63.71
       7150 |          1        0.12       63.83
       7190 |          1        0.12       63.95
       7203 |          1        0.12       64.07
       7263 |          1        0.12       64.18
       7383 |          1        0.12       64.30
       7390 |          1        0.12       64.42
       7398 |          1        0.12       64.54
       7407 |          1        0.12       64.66
       7447 |          1        0.12       64.78
       7523 |          1        0.12       64.89
       7562 |          1        0.12       65.01
       7569 |          1        0.12       65.13
       7647 |          1        0.12       65.25
       7674 |          1        0.12       65.37
       7705 |          1        0.12       65.48
       7765 |          1        0.12       65.60
       7782 |          1        0.12       65.72
       7808 |          1        0.12       65.84
       7821 |          1        0.12       65.96
       7861 |          1        0.12       66.08
       7886 |          1        0.12       66.19
       7934 |          1        0.12       66.31
       7964 |          1        0.12       66.43
       8012 |          1        0.12       66.55
       8069 |          1        0.12       66.67
       8077 |          1        0.12       66.78
       8181 |          1        0.12       66.90
       8262 |          1        0.12       67.02
       8275 |          1        0.12       67.14
       8444 |          1        0.12       67.26
       8478 |          1        0.12       67.38
       8571 |          1        0.12       67.49
       8607 |          1        0.12       67.61
       8654 |          1        0.12       67.73
       8675 |          1        0.12       67.85
       8767 |          1        0.12       67.97
       8802 |          1        0.12       68.09
       8851 |          1        0.12       68.20
       8856 |          1        0.12       68.32
       8858 |          1        0.12       68.44
       8871 |          1        0.12       68.56
       8907 |          1        0.12       68.68
       9211 |          1        0.12       68.79
       9286 |          1        0.12       68.91
       9300 |          1        0.12       69.03
       9398 |          1        0.12       69.15
       9457 |          1        0.12       69.27
       9475 |          1        0.12       69.39
       9518 |          1        0.12       69.50
       9540 |          1        0.12       69.62
       9543 |          1        0.12       69.74
       9546 |          1        0.12       69.86
       9616 |          1        0.12       69.98
       9754 |          1        0.12       70.09
       9852 |          1        0.12       70.21
       9870 |          1        0.12       70.33
       9912 |          1        0.12       70.45
       9948 |          1        0.12       70.57
      10043 |          1        0.12       70.69
      10057 |          1        0.12       70.80
      10114 |          1        0.12       70.92
      10171 |          1        0.12       71.04
      10309 |          1        0.12       71.16
      10319 |          1        0.12       71.28
      10391 |          1        0.12       71.39
      10393 |          1        0.12       71.51
      10478 |          1        0.12       71.63
      10530 |          1        0.12       71.75
      10551 |          1        0.12       71.87
      10650 |          1        0.12       71.99
      10697 |          1        0.12       72.10
      10756 |          1        0.12       72.22
      10827 |          1        0.12       72.34
      10873 |          1        0.12       72.46
      10938 |          1        0.12       72.58
      11037 |          1        0.12       72.70
      11070 |          1        0.12       72.81
      11128 |          1        0.12       72.93
      11237 |          1        0.12       73.05
      11239 |          1        0.12       73.17
      11311 |          1        0.12       73.29
      11380 |          1        0.12       73.40
      11452 |          1        0.12       73.52
      11454 |          1        0.12       73.64
      11486 |          1        0.12       73.76
      11549 |          1        0.12       73.88
      11564 |          1        0.12       74.00
      11646 |          1        0.12       74.11
      11762 |          1        0.12       74.23
      12031 |          1        0.12       74.35
      12048 |          1        0.12       74.47
      12065 |          1        0.12       74.59
      12077 |          1        0.12       74.70
      12200 |          1        0.12       74.82
      12284 |          1        0.12       74.94
      12361 |          1        0.12       75.06
      12437 |          1        0.12       75.18
      12643 |          1        0.12       75.30
      12657 |          1        0.12       75.41
      12829 |          1        0.12       75.53
      12837 |          1        0.12       75.65
      12870 |          1        0.12       75.77
      12993 |          1        0.12       75.89
      13028 |          1        0.12       76.00
      13099 |          1        0.12       76.12
      13134 |          1        0.12       76.24
      13330 |          1        0.12       76.36
      13345 |          1        0.12       76.48
      13410 |          1        0.12       76.60
      13493 |          1        0.12       76.71
      13519 |          1        0.12       76.83
      13546 |          1        0.12       76.95
      13640 |          1        0.12       77.07
      13680 |          1        0.12       77.19
      13815 |          1        0.12       77.30
      13840 |          1        0.12       77.42
      13858 |          1        0.12       77.54
      13889 |          1        0.12       77.66
      14137 |          1        0.12       77.78
      14263 |          1        0.12       77.90
      14331 |          1        0.12       78.01
      14359 |          1        0.12       78.13
      14651 |          1        0.12       78.25
      14655 |          1        0.12       78.37
      14672 |          1        0.12       78.49
      14775 |          1        0.12       78.61
      14791 |          1        0.12       78.72
      14892 |          1        0.12       78.84
      15027 |          1        0.12       78.96
      15201 |          1        0.12       79.08
      15248 |          1        0.12       79.20
      15338 |          1        0.12       79.31
      15345 |          1        0.12       79.43
      15488 |          1        0.12       79.55
      15556 |          1        0.12       79.67
      15986 |          1        0.12       79.79
      16259 |          1        0.12       79.91
      16279 |          1        0.12       80.02
      16303 |          1        0.12       80.14
      16346 |          1        0.12       80.26
      16397 |          1        0.12       80.38
      16519 |          1        0.12       80.50
      16667 |          1        0.12       80.61
      16737 |          1        0.12       80.73
      16901 |          1        0.12       80.85
      17026 |          1        0.12       80.97
      17057 |          1        0.12       81.09
      17168 |          1        0.12       81.21
      17409 |          1        0.12       81.32
      17634 |          1        0.12       81.44
      17722 |          1        0.12       81.56
      17857 |          1        0.12       81.68
      18183 |          1        0.12       81.80
      18222 |          1        0.12       81.91
      18261 |          1        0.12       82.03
      18264 |          1        0.12       82.15
      18299 |          1        0.12       82.27
      18335 |          1        0.12       82.39
      18383 |          1        0.12       82.51
      18519 |          1        0.12       82.62
      18619 |          1        0.12       82.74
      18834 |          1        0.12       82.86
      18846 |          1        0.12       82.98
      18859 |          1        0.12       83.10
      18875 |          1        0.12       83.22
      19573 |          1        0.12       83.33
      19988 |          1        0.12       83.45
      20058 |          1        0.12       83.57
      20117 |          1        0.12       83.69
      20145 |          1        0.12       83.81
      20337 |          1        0.12       83.92
      20400 |          1        0.12       84.04
      21071 |          1        0.12       84.16
      21446 |          1        0.12       84.28
      21537 |          1        0.12       84.40
      21731 |          1        0.12       84.52
      22035 |          1        0.12       84.63
      22682 |          1        0.12       84.75
      22707 |          1        0.12       84.87
      22748 |          1        0.12       84.99
      23123 |          1        0.12       85.11
      23209 |          1        0.12       85.22
      23808 |          1        0.12       85.34
      23984 |          1        0.12       85.46
      24112 |          1        0.12       85.58
      24945 |          1        0.12       85.70
      25173 |          1        0.12       85.82
      25735 |          1        0.12       85.93
      25885 |          1        0.12       86.05
      26014 |          1        0.12       86.17
      26142 |          1        0.12       86.29
      26638 |          1        0.12       86.41
      26728 |          1        0.12       86.52
      26730 |          1        0.12       86.64
      26955 |          1        0.12       86.76
      27156 |          1        0.12       86.88
      27183 |          1        0.12       87.00
      27744 |          1        0.12       87.12
      28743 |          1        0.12       87.23
      29137 |          1        0.12       87.35
      29174 |          1        0.12       87.47
      29504 |          1        0.12       87.59
      29684 |          1        0.12       87.71
      30790 |          1        0.12       87.83
      31435 |          1        0.12       87.94
      31654 |          1        0.12       88.06
      32428 |          1        0.12       88.18
      32439 |          1        0.12       88.30
      33642 |          1        0.12       88.42
      33799 |          1        0.12       88.53
      34075 |          1        0.12       88.65
      34610 |          1        0.12       88.77
      34927 |          1        0.12       88.89
      36542 |          1        0.12       89.01
      36662 |          1        0.12       89.13
      37197 |          1        0.12       89.24
      37201 |          1        0.12       89.36
      37705 |          1        0.12       89.48
      37903 |          1        0.12       89.60
      38108 |          1        0.12       89.72
      38176 |          1        0.12       89.83
      38336 |          1        0.12       89.95
      38939 |          1        0.12       90.07
      39365 |          1        0.12       90.19
      39498 |          1        0.12       90.31
      39777 |          1        0.12       90.43
      40138 |          1        0.12       90.54
      42111 |          1        0.12       90.66
      42366 |          1        0.12       90.78
      42494 |          1        0.12       90.90
      42795 |          1        0.12       91.02
      43590 |          1        0.12       91.13
      43615 |          1        0.12       91.25
      45046 |          1        0.12       91.37
      46609 |          1        0.12       91.49
      48255 |          1        0.12       91.61
      49067 |          1        0.12       91.73
      50251 |          1        0.12       91.84
      50350 |          1        0.12       91.96
      51219 |          1        0.12       92.08
      51600 |          1        0.12       92.20
      51651 |          1        0.12       92.32
      51679 |          1        0.12       92.43
      51686 |          1        0.12       92.55
      52281 |          1        0.12       92.67
      53624 |          1        0.12       92.79
      55396 |          1        0.12       92.91
      59773 |          1        0.12       93.03
      60606 |          1        0.12       93.14
      60857 |          1        0.12       93.26
      60914 |          1        0.12       93.38
      61623 |          1        0.12       93.50
      61663 |          1        0.12       93.62
      61703 |          1        0.12       93.74
      61974 |          1        0.12       93.85
      63567 |          1        0.12       93.97
      66051 |          1        0.12       94.09
      66347 |          1        0.12       94.21
      67500 |          1        0.12       94.33
      67620 |          1        0.12       94.44
      68031 |          1        0.12       94.56
      68743 |          1        0.12       94.68
      69165 |          1        0.12       94.80
      70743 |          1        0.12       94.92
      71171 |          1        0.12       95.04
      72721 |          1        0.12       95.15
      73626 |          1        0.12       95.27
      75968 |          1        0.12       95.39
      76090 |          1        0.12       95.51
      84980 |          1        0.12       95.63
      87407 |          1        0.12       95.74
      88933 |          1        0.12       95.86
      89154 |          1        0.12       95.98
      89860 |          1        0.12       96.10
      90617 |          1        0.12       96.22
      91211 |          1        0.12       96.34
      91919 |          1        0.12       96.45
      95672 |          1        0.12       96.57
      96847 |          1        0.12       96.69
      97252 |          1        0.12       96.81
      98184 |          1        0.12       96.93
     104376 |          1        0.12       97.04
     108478 |          1        0.12       97.16
     111890 |          1        0.12       97.28
     111898 |          1        0.12       97.40
     116535 |          1        0.12       97.52
     119104 |          1        0.12       97.64
     120528 |          1        0.12       97.75
     123235 |          1        0.12       97.87
     132535 |          1        0.12       97.99
     138262 |          1        0.12       98.11
     157363 |          1        0.12       98.23
     160689 |          1        0.12       98.35
     194576 |          1        0.12       98.46
     195480 |          1        0.12       98.58
     195732 |          1        0.12       98.70
     199719 |          1        0.12       98.82
     211114 |          1        0.12       98.94
     234223 |          1        0.12       99.05
     240450 |          1        0.12       99.17
     261269 |          1        0.12       99.29
     271431 |          1        0.12       99.41
     273706 |          1        0.12       99.53
     277146 |          1        0.12       99.65
     287974 |          1        0.12       99.76
     288269 |          1        0.12       99.88
     362102 |          1        0.12      100.00
------------+-----------------------------------
      Total |        846      100.00

. 
. * Table A3
. use "working.dta", clear

. tobit ctpr gaffe [aw=impressions], ll(0) robust
(sum of wgt is   1.4018e+07)

Tobit regression                                  Number of obs   =        846
                                                  F(   1,    845) =       6.23
                                                  Prob > F        =     0.0127
Log pseudolikelihood = -1229.5914                 Pseudo R2       =     0.0022

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .2840576   .1137638     2.50   0.013     .0607648    .5073505
       _cons |   .5882307   .0883918     6.65   0.000     .4147374    .7617239
-------------+----------------------------------------------------------------
      /sigma |   1.713694     .17709                      1.366107    2.061282
------------------------------------------------------------------------------
  Obs. summary:        427  left-censored observations at ctpr<=0
                       419     uncensored observations
                         0 right-censored observations

. tobit ctpr gaffe female geog relat age2 [aw=impressions], ll(0) robust
(sum of wgt is   1.4018e+07)

Tobit regression                                  Number of obs   =        846
                                                  F(   5,    841) =       3.32
                                                  Prob > F        =     0.0057
Log pseudolikelihood = -1220.8425                 Pseudo R2       =     0.0093

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .3484613   .1146917     3.04   0.002     .1233457     .573577
      female |   .1162975   .1134665     1.02   0.306    -.1064132    .3390082
        geog |    .209004   .0981488     2.13   0.034     .0163586    .4016495
       relat |   .0086973   .1093759     0.08   0.937    -.2059844     .223379
        age2 |   .5787446    .246289     2.35   0.019     .0953313    1.062158
       _cons |   .2217345   .1565169     1.42   0.157    -.0854752    .5289442
-------------+----------------------------------------------------------------
      /sigma |   1.651136   .1765767                      1.304553    1.997719
------------------------------------------------------------------------------
  Obs. summary:        427  left-censored observations at ctpr<=0
                       419     uncensored observations
                         0 right-censored observations

. tobit ctpr gaffe female geog relat age2 [aw=impressions] if lib==1, ll(0) robus
> t
(sum of wgt is   3.1652e+06)

Tobit regression                                  Number of obs   =        282
                                                  F(   5,    277) =       2.97
                                                  Prob > F        =     0.0124
Log pseudolikelihood = -429.10462                 Pseudo R2       =     0.0211

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .6326308    .326638     1.94   0.054    -.0103774    1.275639
      female |   .1823075   .3832015     0.48   0.635    -.5720497    .9366646
        geog |  -.1298623   .2640044    -0.49   0.623    -.6495722    .3898476
       relat |  -.4167413   .3329139    -1.25   0.212    -1.072104    .2386213
        age2 |    1.41217     .57021     2.48   0.014     .2896741    2.534665
       _cons |   .1942573    .416787     0.47   0.642     -.626215     1.01473
-------------+----------------------------------------------------------------
      /sigma |   2.423289   .4493889                      1.538638     3.30794
------------------------------------------------------------------------------
  Obs. summary:        160  left-censored observations at ctpr<=0
                       122     uncensored observations
                         0 right-censored observations

. tobit ctpr gaffe female geog relat age2 [aw=impressions] if cons==1, ll(0) robu
> st
(sum of wgt is   2.6591e+06)

Tobit regression                                  Number of obs   =        282
                                                  F(   5,    277) =       2.11
                                                  Prob > F        =     0.0650
Log pseudolikelihood = -365.26099                 Pseudo R2       =     0.0202

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .3963112   .2631174     1.51   0.133    -.1216525     .914275
      female |  -.0357981   .2409174    -0.15   0.882    -.5100597    .4384635
        geog |   .4445847   .2821826     1.58   0.116    -.1109101    1.000079
       relat |   .4250032   .2769734     1.53   0.126     -.120237    .9702434
        age2 |  -1.674605   .8118248    -2.06   0.040    -3.272735   -.0764756
       _cons |  -.1926427   .4399736    -0.44   0.662    -1.058759     .673474
-------------+----------------------------------------------------------------
      /sigma |   2.302274   .4786313                      1.360057     3.24449
------------------------------------------------------------------------------
  Obs. summary:        171  left-censored observations at ctpr<=0
                       111     uncensored observations
                         0 right-censored observations

. tobit ctpr gaffe female geog relat age2 [aw=impressions] if ind==1, ll(0) robus
> t
(sum of wgt is   8.1934e+06)

Tobit regression                                  Number of obs   =        282
                                                  F(   5,    277) =       7.64
                                                  Prob > F        =     0.0000
Log pseudolikelihood = -387.81721                 Pseudo R2       =     0.0191

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       gaffe |   .1982871   .0765988     2.59   0.010     .0474972    .3490769
      female |   -.001881   .0902375    -0.02   0.983    -.1795193    .1757574
        geog |   .1623669   .0795628     2.04   0.042     .0057424    .3189913
       relat |   .1448945    .083596     1.73   0.084    -.0196696    .3094586
        age2 |   .5885316   .1713103     3.44   0.001     .2512961     .925767
       _cons |    .436519   .1124481     3.88   0.000     .2151577    .6578803
-------------+----------------------------------------------------------------
      /sigma |   .9590073   .1237745                      .7153491    1.202666
------------------------------------------------------------------------------
  Obs. summary:         96  left-censored observations at ctpr<=0
                       186     uncensored observations
                         0 right-censored observations

. 
. * Table A4, left side
. preserve

. keep if gaffe==0
(423 observations deleted)

. tobit ctpr ownad [aw=impressions], ll(0) robust
(sum of wgt is   2.6042e+06)

Tobit regression                                  Number of obs   =        282
                                                  F(   1,    281) =       0.12
                                                  Prob > F        =     0.7274
Log pseudolikelihood = -383.63258                 Pseudo R2       =     0.0002

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .1035643   .2967721     0.35   0.727    -.4806143     .687743
       _cons |   .3286708    .298306     1.10   0.271    -.2585273    .9158689
-------------+----------------------------------------------------------------
      /sigma |   2.180305   .4229988                      1.347656    3.012954
------------------------------------------------------------------------------
  Obs. summary:        170  left-censored observations at ctpr<=0
                       112     uncensored observations
                         0 right-censored observations

. tobit ctpr ownad female geog relat age2 [aw=impressions], ll(0) robust
(sum of wgt is   2.6042e+06)

Tobit regression                                  Number of obs   =        282
                                                  F(   5,    277) =       1.00
                                                  Prob > F        =     0.4204
Log pseudolikelihood = -381.49247                 Pseudo R2       =     0.0058

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .0074808   .2837938     0.03   0.979    -.5511858    .5661474
      female |   .3883889   .3008961     1.29   0.198    -.2039446    .9807224
        geog |  -.1270265   .2723688    -0.47   0.641    -.6632022    .4091493
       relat |  -.4349125   .2919933    -1.49   0.138     -1.00972    .1398954
        age2 |   .0352613   .6494806     0.05   0.957    -1.243283    1.313806
       _cons |     .37976   .4168369     0.91   0.363    -.4408105    1.200331
-------------+----------------------------------------------------------------
      /sigma |   2.170424   .4621831                      1.260586    3.080261
------------------------------------------------------------------------------
  Obs. summary:        170  left-censored observations at ctpr<=0
                       112     uncensored observations
                         0 right-censored observations

. tobit ctpr ownad female geog relat age2 [aw=impressions] if lib==1, ll(0) robus
> t
(sum of wgt is   1.4205e+06)

Tobit regression                                  Number of obs   =        141
                                                  F(   5,    136) =       1.92
                                                  Prob > F        =     0.0948
Log pseudolikelihood = -204.63622                 Pseudo R2       =     0.0198

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |  -.1368514   .3772521    -0.36   0.717    -.8828904    .6091875
      female |   .4405907   .4072411     1.08   0.281    -.3647533    1.245935
        geog |  -.6391845   .3449886    -1.85   0.066     -1.32142    .0430514
       relat |  -.8294882   .4293437    -1.93   0.055    -1.678541     .019565
        age2 |   .5701602   .6836724     0.83   0.406    -.7818435    1.922164
       _cons |   .9700863   .4474067     2.17   0.032     .0853124     1.85486
-------------+----------------------------------------------------------------
      /sigma |   2.091453   .5882455                      .9281618    3.254744
------------------------------------------------------------------------------
  Obs. summary:         80  left-censored observations at ctpr<=0
                        61     uncensored observations
                         0 right-censored observations

. tobit ctpr ownad female geog relat age2 [aw=impressions] if cons==1, ll(0) robu
> st
(sum of wgt is   1.1837e+06)

Tobit regression                                  Number of obs   =        141
                                                  F(   5,    136) =       1.28
                                                  Prob > F        =     0.2748
Log pseudolikelihood = -163.28145                 Pseudo R2       =     0.0376

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .5303538   .3734816     1.42   0.158    -.2082287    1.268936
      female |  -.2192798   .3503225    -0.63   0.532    -.9120639    .4735043
        geog |   .4540114   .4251025     1.07   0.287    -.3866546    1.294677
       relat |   1.018409   .4742544     2.15   0.034     .0805426    1.956276
        age2 |  -2.170386   1.133799    -1.91   0.058    -4.412542    .0717696
       _cons |  -.3913406   .7003305    -0.56   0.577    -1.776287    .9936055
-------------+----------------------------------------------------------------
      /sigma |   2.006688   .6518769                      .7175621    3.295815
------------------------------------------------------------------------------
  Obs. summary:         90  left-censored observations at ctpr<=0
                        51     uncensored observations
                         0 right-censored observations

. restore

. 
. * Table A4, right side
. preserve

. keep if gaffe==1
(423 observations deleted)

. tobit ctpr ownad [aw=impressions], ll(0) robust
(sum of wgt is   3.2201e+06)

Tobit regression                                  Number of obs   =        282
                                                  F(   1,    281) =       4.01
                                                  Prob > F        =     0.0462
Log pseudolikelihood = -426.73601                 Pseudo R2       =     0.0066

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |    .790373   .3947192     2.00   0.046     .0133911    1.567355
       _cons |   .3321954   .2682693     1.24   0.217    -.1958773    .8602681
-------------+----------------------------------------------------------------
      /sigma |   2.676928   .4361242                      1.818443    3.535413
------------------------------------------------------------------------------
  Obs. summary:        161  left-censored observations at ctpr<=0
                       121     uncensored observations
                         0 right-censored observations

. tobit ctpr ownad female geog relat age2 [aw=impressions], ll(0) robust
(sum of wgt is   3.2201e+06)

Tobit regression                                  Number of obs   =        282
                                                  F(   5,    277) =       1.67
                                                  Prob > F        =     0.1430
Log pseudolikelihood = -421.35762                 Pseudo R2       =     0.0191

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .8283995   .3320097     2.50   0.013     .1748167    1.481982
      female |  -.0508195   .3049752    -0.17   0.868     -.651183    .5495439
        geog |   .5804023   .2992479     1.94   0.053    -.0086866    1.169491
       relat |  -.2998603   .3287176    -0.91   0.362    -.9469623    .3472417
        age2 |   .9439402   .7181866     1.31   0.190    -.4698569    2.357737
       _cons |  -.0272102   .4118533    -0.07   0.947    -.8379703    .7835498
-------------+----------------------------------------------------------------
      /sigma |   2.485075   .4619168                      1.575761    3.394388
------------------------------------------------------------------------------
  Obs. summary:        161  left-censored observations at ctpr<=0
                       121     uncensored observations
                         0 right-censored observations

. tobit ctpr ownad female geog relat age2 [aw=impressions] if lib==1, ll(0) robus
> t
(sum of wgt is   1.7447e+06)

Tobit regression                                  Number of obs   =        141
                                                  F(   5,    136) =       3.08
                                                  Prob > F        =     0.0114
Log pseudolikelihood = -216.20818                 Pseudo R2       =     0.0358

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .8888866   .4759539     1.87   0.064    -.0523411    1.830114
      female |  -.1780793   .4991217    -0.36   0.722    -1.165123    .8089643
        geog |   .2459188   .3773825     0.65   0.516    -.5003781    .9922157
       relat |  -.3973005   .4690778    -0.85   0.398     -1.32493    .5303295
        age2 |   2.056457   .6858992     3.00   0.003     .7000501    3.412865
       _cons |   .1240208   .5527875     0.22   0.823    -.9691501    1.217192
-------------+----------------------------------------------------------------
      /sigma |   2.466235   .6566359                      1.167697    3.764772
------------------------------------------------------------------------------
  Obs. summary:         80  left-censored observations at ctpr<=0
                        61     uncensored observations
                         0 right-censored observations

. tobit ctpr ownad female geog relat age2 [aw=impressions] if cons==1, ll(0) robu
> st
(sum of wgt is   1.4754e+06)

Tobit regression                                  Number of obs   =        141
                                                  F(   5,    136) =       1.75
                                                  Prob > F        =     0.1278
Log pseudolikelihood = -195.46792                 Pseudo R2       =     0.0201

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       ownad |   .9345423   .3667881     2.55   0.012     .2091966    1.659888
      female |   .0261244   .3282049     0.08   0.937    -.6229207    .6751696
        geog |   .6583972   .3718706     1.77   0.079    -.0769996    1.393794
       relat |   .2502962   .3515014     0.71   0.478    -.4448191    .9454115
        age2 |  -1.622494   1.151594    -1.41   0.161     -3.89984     .654853
       _cons |  -.2952067   .5319034    -0.56   0.580    -1.347078    .7566645
-------------+----------------------------------------------------------------
      /sigma |   2.358676   .6293457                      1.114106    3.603245
------------------------------------------------------------------------------
  Obs. summary:         81  left-censored observations at ctpr<=0
                        60     uncensored observations
                         0 right-censored observations

. restore

. 
. * Table A5
. reg ctpr ownad##gaffe [aw=impressions], robust
(sum of wgt is   5.8243e+06)

Linear regression                                      Number of obs =     564
                                                       F(  3,   560) =    1.97
                                                       Prob > F      =  0.1175
                                                       R-squared     =  0.0493
                                                       Root MSE      =  1.3732

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
     1.ownad |   .0488292   .2018946     0.24   0.809     -.347734    .4453924
     1.gaffe |    .038741   .1781951     0.22   0.828    -.3112714    .3887535
             |
 ownad#gaffe |
        1 1  |   .6477936   .3631458     1.78   0.075    -.0655007    1.361088
             |
       _cons |   .9360059   .1421002     6.59   0.000     .6568914     1.21512
------------------------------------------------------------------------------

. reg ctpr ownad##gaffe female geog relat age2 [aw=impressions], robust
(sum of wgt is   5.8243e+06)

Linear regression                                      Number of obs =     564
                                                       F(  7,   556) =    9.91
                                                       Prob > F      =  0.0000
                                                       R-squared     =  0.2319
                                                       Root MSE      =  1.2387

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
     1.ownad |   .2012568   .1625289     1.24   0.216    -.1179889    .5205026
     1.gaffe |   .2357449   .1485745     1.59   0.113    -.0560911    .5275808
             |
 ownad#gaffe |
        1 1  |   .4345753   .2544967     1.71   0.088    -.0653171    .9344678
             |
      female |  -.2087706     .13123    -1.59   0.112    -.4665379    .0489966
        geog |  -.1040241     .11056    -0.94   0.347    -.3211904    .1131421
       relat |  -.2604032   .1335555    -1.95   0.052    -.5227383    .0019318
        age2 |   1.802849   .2356863     7.65   0.000     1.339904    2.265793
       _cons |   .5792288   .1677705     3.45   0.001     .2496872    .9087704
------------------------------------------------------------------------------

. 
. * The combination of 1) a Tobit model, 2) interaction terms, and 
. * 3) the robust option causes Stata to get standard errors wrong. 
. * Hence, these are specified as interval regressions, which 
. * are mathematically equivalent to Tobit in this case, and 
. * generate correct standard errors.
. 
. intreg ctpr2 ctpr3 ownad##gaffe [aw=impressions], robust

Fitting constant-only model:

Iteration 0:   log pseudolikelihood = -939.53226  
Iteration 1:   log pseudolikelihood = -829.86904  
Iteration 2:   log pseudolikelihood = -821.73571  
Iteration 3:   log pseudolikelihood = -821.73082  
Iteration 4:   log pseudolikelihood = -821.73082  

Fitting full model:

Iteration 0:   log pseudolikelihood = -931.71707  
Iteration 1:   log pseudolikelihood = -822.90982  
Iteration 2:   log pseudolikelihood = -815.02719  
Iteration 3:   log pseudolikelihood = -815.02337  
Iteration 4:   log pseudolikelihood = -815.02337  

Interval regression                               Number of obs   =        564
                                                  Wald chi2(3)    =       6.28
Log pseudolikelihood = -815.02337                 Prob > chi2     =     0.0988

------------------------------------------------------------------------------
             |               Robust
             |      Coef.   Std. Err.      z    P>|z|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
     1.ownad |   .1146999   .3339831     0.34   0.731     -.539895    .7692948
     1.gaffe |   .2286457   .3149821     0.73   0.468    -.3887078    .8459993
             |
 ownad#gaffe |
        1 1  |   .6676211   .5071735     1.32   0.188    -.3264207    1.661663
             |
       _cons |   .1876007   .2593433     0.72   0.469    -.3207029    .6959042
-------------+----------------------------------------------------------------
    /lnsigma |   .9090875   .0593455    15.32   0.000     .7927724    1.025403
-------------+----------------------------------------------------------------
       sigma |   2.482057   .1472989                      2.209514    2.788218
------------------------------------------------------------------------------

  Observation summary:       331  left-censored observations
                             233     uncensored observations
                               0 right-censored observations
                               0       interval observations

. intreg ctpr2 ctpr3 ownad##gaffe female geog relat age2 [aw=impressions], robust

Fitting constant-only model:

Iteration 0:   log pseudolikelihood = -939.53226  
Iteration 1:   log pseudolikelihood = -829.86904  
Iteration 2:   log pseudolikelihood = -821.73571  
Iteration 3:   log pseudolikelihood = -821.73082  
Iteration 4:   log pseudolikelihood = -821.73082  

Fitting full model:

Iteration 0:   log pseudolikelihood = -949.59369  
Iteration 1:   log pseudolikelihood = -822.60267  
Iteration 2:   log pseudolikelihood = -809.27139  
Iteration 3:   log pseudolikelihood = -809.17067  
Iteration 4:   log pseudolikelihood = -809.17065  

Interval regression                               Number of obs   =        564
                                                  Wald chi2(7)    =      10.05
Log pseudolikelihood = -809.17065                 Prob > chi2     =     0.1855

------------------------------------------------------------------------------
             |               Robust
             |      Coef.   Std. Err.      z    P>|z|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
     1.ownad |   .0947726   .3165336     0.30   0.765    -.5256219    .7151671
     1.gaffe |   .3091672   .2903342     1.06   0.287    -.2598774    .8782119
             |
 ownad#gaffe |
        1 1  |   .7273896   .4575686     1.59   0.112    -.1694285    1.624208
             |
      female |   .1830156   .2289987     0.80   0.424    -.2658137    .6318449
        geog |   .3139234   .2083845     1.51   0.132    -.0945026    .7223495
       relat |  -.3731057   .2365949    -1.58   0.115    -.8368231    .0906118
        age2 |   .4582942    .424227     1.08   0.280    -.3731754    1.289764
       _cons |   -.081522   .3420343    -0.24   0.812    -.7518969     .588853
-------------+----------------------------------------------------------------
    /lnsigma |   .8746845   .0495464    17.65   0.000     .7775754    .9717936
-------------+----------------------------------------------------------------
       sigma |   2.398119   .1188181                       2.17619     2.64268
------------------------------------------------------------------------------

  Observation summary:       331  left-censored observations
                             233     uncensored observations
                               0 right-censored observations
                               0       interval observations

. 
. * Just for reference, the Tobit models with ridiculous (wrong) standard errors:
. tobit ctpr ownad##gaffe [aw=impressions], ll(0) robust
(sum of wgt is   5.8243e+06)

Tobit regression                                  Number of obs   =        564
                                                  F(   3,    561) =  161801.90
                                                  Prob > F        =     0.0000
Log pseudolikelihood = -815.02337                 Pseudo R2       =     0.0082

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
     1.ownad |   .1146999   .0086721    13.23   0.000     .0976662    .1317336
     1.gaffe |   .2286457   .0274276     8.34   0.000     .1747723    .2825191
             |
 ownad#gaffe |
        1 1  |   .6676211   .0014841   449.85   0.000      .664706    .6705362
             |
       _cons |   .1876007   .1095334     1.71   0.087     -.027545    .4027463
-------------+----------------------------------------------------------------
      /sigma |    252.229   33.08969                      187.2342    317.2239
------------------------------------------------------------------------------
  Obs. summary:        331  left-censored observations at ctpr<=0
                       233     uncensored observations
                         0 right-censored observations

. tobit ctpr ownad##gaffe female geog relat age2 [aw=impressions], ll(0) robust
(sum of wgt is   5.8243e+06)

Tobit regression                                  Number of obs   =        564
                                                  F(   7,    557) =  403569.60
                                                  Prob > F        =     0.0000
Log pseudolikelihood = -809.17065                 Pseudo R2       =     0.0153

------------------------------------------------------------------------------
             |               Robust
        ctpr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
     1.ownad |   .0947726   .0215751     4.39   0.000     .0523942    .1371511
     1.gaffe |   .3091672   .0096404    32.07   0.000     .2902312    .3281033
             |
 ownad#gaffe |
        1 1  |   .7273895    .049754    14.62   0.000     .6296612    .8251179
             |
      female |   .1830156   .0672942     2.72   0.007     .0508341    .3151971
        geog |   .3139234    .070299     4.47   0.000     .1758399     .452007
       relat |  -.3731057   .0221115   -16.87   0.000    -.4165378   -.3296735
        age2 |   .4582943    .232441     1.97   0.049     .0017262    .9148624
       _cons |  -.0815219   .1049522    -0.78   0.438    -.2876724    .1246285
-------------+----------------------------------------------------------------
      /sigma |   243.6992   34.64051                      175.6572    311.7412
------------------------------------------------------------------------------
  Obs. summary:        331  left-censored observations at ctpr<=0
                       233     uncensored observations
                         0 right-censored observations

. 
end of do-file

. log close
      name:  <unnamed>
       log:  /Users/TJRyan/Dropbox/Facebook Experiments/Replication files/analysi
> s-main.log
  log type:  text
 closed on:  31 Aug 2015, 11:18:55
---------------------------------------------------------------------------------
